function ttOn()
{
//tool tip on function
var obj = window.document.getElementById("tooltip_id");
xPos = document.getElementById("tooltip_id").style.left ;
yPos = document.getElementById("tooltip_id").style.top;

content = ' <br /><img src="http://www.leaderpage.com/ShareBookmark.gif" style="position:absolute; top:'+yPos+'; left:'+xPos+'; z-index:100" />';
document.getElementById("tooltipbox").innerHTML = content;

}


function ttOff()
{
//tool tip off function
//var xPos=0;
//var obj = window.document.getElementById("tooltipbox");
//var newPos = parseInt(obj.style.left) - xPos;
//document.getElementById("tooltipbox").style.left = newPos;

content = '<br />';
document.getElementById("tooltipbox").innerHTML = content;
}


url = "<span id='tooltipbox'></span> ";
document.write(url);